Hard Mathematics Chapter 1: Real Numbers Class 10 Level 16

\(\sqrt{5}\) की सिद्धि में \(q^2=5k^2\) से (q) (5) से विभाज्य है। इस निष्कर्ष के लिए कौन सी शर्त जरूरी है?

In the proof of \(\sqrt{5}\), (q) is divisible by (5) from \(q^2=5k^2\). Which condition is necessary for this conclusion?

Explanation opens after your attempt
Correct Answer

A. (5) अभाज्य हो(5) is prime

Step 1

Concept

From \(q^2=5k^2\), \(q^2\) is divisible by (5).

Step 2

Why this answer is correct

To conclude divisibility of the original number from the square, (5) must be prime.

Step 3

Exam Tip

Therefore (q) is said to be divisible by (5). चरण 1: \(q^2=5k^2\) से \(q^2\) (5) से विभाज्य है। चरण 2: वर्ग से मूल संख्या की विभाज्यता निकालने के लिए (5) का अभाज्य होना जरूरी है। चरण 3: इसी कारण (q) (5) से विभाज्य कहा जाता है।

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The correct answer is A. (5) अभाज्य हो / (5) is prime.

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